Leveling-bolster for separators.



No. 776,016. PATENTED NOV 29, 1904. A. B. PEIRING.

LEVELING BOLSTER FOB SEPARATORS.

APPLICATION FILED MAY 7.1904.

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PATENTED NOV. '29, 1904. A. B. FEIRING. LEVELING BOLSTBR FOR SEPARATORS.

APPLICATION I'ILED MAY 7. 1904.

3 SHBETSSHEBT 2.

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PATENTED NOV; 29, 1904.

uumin' MIDI] N APPLIUATIUN FILED MAY 7 1904 uuuunun A. B. FEIRING. LEVELING BOLSTER FOR SBPARATORS.

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NITED STATES Patented November .29, 190 1.

PATFN LEVELlNG-BOLSTER F OR SEPARATORS,

SFECIFiGATION forming part of Letters Patent N 776,016, dated November 29, 1904.

Application filed May 7, 1904:. Serial No. 206,814. No mpdelJ To all whom it may concern:

Be it known that 1, ANDREW B. FIGIRING, a citizen of the United States, residing at his mond, in the county of Benson and State of North Dakota, have invented certain new and useful Improvements in Leveling-Bolsters for Separators. 850.; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide a leveling-bolster for the rear end of a threshing-machine separator and other similar uses; and to this end my invention consists of the novel devices and combinations of devices hereinafter described, and defined in the claims.

The invention is illustrated in the accompan ying drawings, wherein like notations refer to like parts throughout the several views.

In said drawings, Figure 1 is a view in side elevation, showing my invention applied in working position to a threshing-machine separator, some parts being broken away and others removed. Fig. 2 is a rear end elevation of the parts shown in Fig. 1 with some portions broken away. Fig. 3 is a view in side elevation, showing the hand-lever with pawland-ratchet device detached, a portion being broken away. Fig. 4 is an edge view of the parts shown in Fig. 3, and Fig. 5 is a seetional elevation on the line :12 11: of Fig. Fig. (5 is a vertical cro'sssection on the line .11 w" of Fig. 1 with some parts broken away and some others removed. Fig. 7 is a plan view of the parts shown in Fig. 6, and Fig. 8 is a section on the line w of Fig. 6.

The numeral 1 represents the wheels of the rear end truck, and 2 the truck-axle for supporting the rear end of the separator-frame 3 by means of the leveling-bolster at, which is centrally pivoted to the truck-axle '2. The frame-sills 5 rest directly on the ends of the bolster 4L and are provided with stirrup-brackets 6, which embrace the bolster.

J ack-screws 7 are pivotally anchored to the truck-axle 2, as best shown in Fig. 6, and work through rotary nuts 8, anchored against axial motion in the ends of the bolster 4. As

the jack-screws shown, the jack-screws 1 are ball-headed and are held in their socket or seats by theretaining-plates 9, through which the stems of the jack-screws pass. The rotary nuts 8 are held between perforated cross-ties or hearingplates 10, secured to the side bars of the bolster, with the said plates embracing the hubs of the nuts 8, and thus anchoring the same to the bolster against longitudinal or axial motion, while at the same time permittingthe said nuts 8 to rotate in said anchoring-supports for the required action therefrom. The said nuts have formed ii'itegral therewith beveled gears 1.1., with which cooperate bevelgears 12 on the end of the shaft .13, mounted in bearing 14:, fixed to the bolster. The said gears 12 and shaft 12) are located inward of 7 in respect to the center of the truck. An additional pair of bevel or miter gears 15 are fixed each to the inner end of a stud-shaft 16, mounted in bearing-blocks 17, fixed to and forming a part of the bolster. One of said stud-shafts 16 extends outward through its bearing-block 17 beyond the end of the bolster proper and has removably lixed thereto a ratchet-wheel 18. A hand-lever 19 is pivoted on the hub of the ratchet-wheel 18 and is provided with a two-pronged or reversible driving-pawl 20, pivoted thereto and subject to either member of a two-leaf spring 21, between the prongs or leaves of which works a cam-rocker 22, with linger'piece 23, by which parts 22 and 23 either leaf of the spring 21 can be brought into action on the head of the pawl 20 for reversing the same and springholding the pawl in proper working relation to the ratchet 18 for driving the same in either direction under the action of the hand-lever 19, all as may readily be understood from an inspection of Figs. 1, 3, a. and

With this relation of the parts, as above described, it is of course obvious that the studshaft 16, to which the pawl and lover devices are attached, may be turned in either direction at will. It follows of course that all the parts connected therewith --to wit, the nuts 8 of the jack-screws 7, the beveled gears 12, en gaging the inner faces ofthe horizontal mitergears 11, and the other outer miter-gear, 15, on

ting of the machine.

the opposite stud-shaft 16-will receive motion from the hand-operated pawl-and-ratchet devices and that these motions will be reversed whenever the drivingpawl is reversed, as above described. If the direction of rotation be traced, it will be seen that the jack-nuts 8 always turn in opposite directions or toward each other. It follows of course that one nut will rise and the other lower on their respective jack-screws 7. Inasmuch as the nuts 8 are anchored to the opposite ends of the bolster 4: against axial or longitudinal motion, it follows of course that the bolster 4, will receive apivotal motion in a vertical plane, thus angularly adjusting the bolster in respect to the axle 2 in one direction or the other, according to the direction of rotation of theinitial member of the miter-gear shafts. Hence it further follows that by setting the drivingpawl 20 on the hand-lever 19 for driving the ratchet 18 in one direction or the other, as may be required, the bolster 4 may be given an angular adjustment in either direction by the hoistingjacks applied to the opposite ends thereof, as above described. Hence by simply adjusting the bolster L the separatorframe may be brought to a level or horizontal position regardless of the angular relation to the truck-axle 2.

The separator-frame should always stand in a level position in order to secure the proper action of the sieve-shoe 2a and other operative parts supported within the separatorframe. It is of course well known that the sieves of the shoe 24 will not act in the proper way unless the shoe is suspended so as to swing in the horizontal plane. The same remark applies to the suspended rakes (not shown) and many of the other operative parts supported within the separator-frame. Hitherto it has been the custom to block up or set down in the ground one or the other of the truck-wheels in order to bring the separator-frame to a level position. This always requires considerable time, and ofttimes readjustment has to be made fora single set- By my leveling-bolster herein disclosed the separator frame can quickly be brought to a level position, saving much time in the setting of the machine, and may be readjusted whenever so required by the sinking ofthe truck-wheels, and this can de done without stopping the machine.

The stirrup-brackets 6 permit the angular adjustment of the bolster 4 in respect to the truck 2 while serving to connect the bolster to the truck for transmitting the strains from the bolster to the axle and preventing the displacement of the separator-frame.

It will of course be understood that the details of construction may be varied without departing from the spirit of my invention.

The leveling-bolster herein disclosed is especially serviceable for threshingmachine separators and clover-hullers; but it will of course be understood that the same is applicable for supporting any other desired machine or wagon box from a supporting-truck.

hat I claim, and desire to secure by Letters Patent of the United States, is as follows:

1. The combination with a separator frame and truck, of a truckbolster centrally pivoted to the truck, for pivotal motion in a vertical plane, hoisting jacks reacting between the truck and the ends of the bolster, and a common drive operative to turn the rotary members of the jacks in reverse directions to effect said angular adjustment of the bolster, and which drive is reversible, at will, to reverse the adjustment of said bolster, substantially as described.

2. The combination with a separator frame and truck, of the centrally-pivoted bolster, the jack screws pivotally anchored to. the truck-axle, the rotary jack-nuts axially anchored to the ends of the bolster, the mitergear and gear-shafts for reversely turning said jacks-nuts, and a hand-lever applied to one member of said gear-shafts, substantially as described.

3. The combination with a separator frame and truck, of the centrally-pivoted truck-bolster, the jack-screws pivotally anchored to the truck, the rotary jack-nuts axially anchored to the ends of the bolster, the miter-gear and gear-shafts for reversely turning said jacknuts, and a hand-lever with reversible pawl and ratchet applied to the initial or driving member of said gear-shafts, substantially as described.

4. The combination with a truck, of a bolster pivoted thereto for pivotal motion in a vertical plane, a pair of hoisting-jacks reacting between the truck and the ends of the bolster, and a common drive for reversely turning themovable members of the hoisting-j ac ks to eifect the angular adjustment of the bolster, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ANDREW B. FEIRING.

Witnesses:

R. D. SWENGEL, O. S. GARLsoN. 

